No exploitation reported

CVE-2015-5626

Q: Is CVE-2015-5626 actively exploited?

Active exploitation of CVE-2015-5626 has not been confirmed. Its EPSS score was 4.2% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2015-5626?

CVE-2015-5626 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2020-02-05
WeaknessCWE-787

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Stack-based buffer overflow in Yokogawa CENTUM CS 1000 R3.08.70 and earlier, CENTUM CS 3000 R3.09.50 and earlier, CENTUM CS 3000 Entry R3.09.50 and earlier, CENTUM VP R5.04.20 and earlier, CENTUM VP Entry R5.04.20 and earlier, ProSafe-RS R3.02.10 and earlier, Exaopc R3.72.00 and earlier, Exaquantum R2.85.00 and earlier, Exaquantum/Batch R2.50.30 and earlier, Exapilot R3.96.10 and earlier, Exaplog R3.40.00 and earlier, Exasmoc R4.03.20 and earlier, Exarqe R4.03.20 and earlier, Field Wireless Device OPC Server R2.01.02 and earlier, PRM R3.12.00 and earlier, STARDOM VDS R7.30.01 and earlier, STARDOM OPC Server for Windows R3.40 and earlier, FAST/TOOLS R10.01 and earlier, B/M9000CS R5.05.01 and earlier, B/M9000 VP R7.03.04 and earlier, and FieldMate R1.01 or R1.02 allows remote attackers to cause a denial of service (network-communications outage) via a crafted packet.

Timeline

dates in UTC

2020-02-0519:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2015-5626?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2015-5626?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Yokogawa fieldmate

Branch	Affected	Fixed in	Source
—	= r1.01	no fix published	NVD
—	= r1.02	no fix published	NVD

Yokogawa b\/m9000 vp firmwareversion to verify

Branch	Affected	Fixed in	Source
—	≤ r7.03.04	no fix published	NVD

Yokogawa b\/m9000cs firmwareversion to verify

Branch	Affected	Fixed in	Source
—	≤ r5.05.01	no fix published	NVD

18 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSA-15-253-01 CISA21 known affected
Yokogawa Multiple Products Buffer Overflow Vulnerabilities
Yokogawa CENTUM CS 1000: <=R3.08.70 · Yokogawa CENTUM CS 3000: <=R3.09.50 · Yokogawa CENTUM CS 3000 Entry: <=R3.09.50 · +18 more

Full record on NVD

Fix

Mitigation from the vendor CISA ICSA-15-253-01 · 21 productsYokogawa has released product revisions for multiple affected products that remediate the identified vulnerabilities. Yokogawa’s Security Advisory Report, YSAR-15-0003 Vulnerabilities of Communication Functions in CENTUM, and other YOKOGAWA products are available at the following URL: (http://www.…
Mitigation from the vendor CISA ICSA-15-253-01 · 21 productsFor additional information about the vulnerabilities and to obtain Yokogawa’s product revisions, contact Yokogawa via its Security web site at: (https://plus.yokogawa.co.jp/gw/gw.po?c-id=000498)
Mitigation from the vendor CISA ICSA-15-253-01 · 21 productsYokogawa offers the following recommendations to minimize the risk associated with these vulnerabilities by applying the actions: Apply properly configured firewall between the external network and control system network to prevent external communication with the affected devices. Prevent unapprov…

Advisories and patches

ics-cert.us-cert.govMitigation

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.19.8read 2026-10-23
NVDCVSS 2.010read 2026-10-23
NVDweakness (CWE)CWE-787read 2026-10-23
FIRST EPSSEPSS score4.2 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2020-02-05
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2015-5626?

Is CVE-2015-5626 actively exploited?

Active exploitation of CVE-2015-5626 has not been confirmed. Its EPSS score was 4.2% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2015-5626?

CVE-2015-5626 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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